Sash-balance



(No Model.)

F. X. PAYMENT & J. .G. HARTIG.

SASH BALANCE. No. 545,609.. 7 Patented Sept. 3,1895.

\ ill I Wasaw UNITED STATES FRANCOIS XAVIER PAYMENT AND JOHN C. HARTIG, OF CHICAGO, ILLINOIS.

PAT NT OFFICE.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 545,609, dated September 3, 1895.

Application filed July 13, 1894.

To all whom it may concern.-

Be it known that we, FRANCOIS XAVIER PAYMENT, a subject of the Queen of Great Britain, and JOHN G. HARTIG, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Pulleys, of which the following is a specification.

Our invention relates to suspending pulleys and the like particularly adapted for sashsupports.

The object is to provide a simple easilyoperatingsash-supporting pulley, which will support the sash in any desired position and which can be applied without particularly disfiguring either window frame or sash and which will leave few parts exposed.

Our invention is illustrated in the accompanying drawings, wherein-.

Figure 1 is a section view through a portion of a window casing and sash, showing a side elevation of my device in position for use. Fig. 2 is a cross-section through the pulley and case. Fig. 3 is an inside view of the plate.

Like parts are indicated by the same letters in all the figures.

A is the window-frame, which is mortised or worked out at A to receive the pulley-case.

Bis the sash, which is mortised atB to receive the block B on the end of the supporting-ribbon.

O is a plate, preferably secured at the mouth of the aperture or mortise, so as to cover the same, and having the inwardly-projecting ring-shaped portion 0' with the side parts 0 thus together forming the case for the pulle proper.

C is a shaft cutaway at O and fitted into the side of the pulley-case so as to be fixed and not to rotate.

C is the pulley-flange, which presents a flat surface projecting up into the contracted outer annular space of the pulley-case, and it is mounted and supported upon the pulley proper O, which is loose upon the shaft 0 It is mounted upon'the ring 0 D is a metallic suspending ribbon secured at one end upon the cross-pin D, which is let into the slot D in the lower end of the block B The ribbon passes through the block B and about a part 0 and is finally secured to the pin D in the side of the pulley. A coiled Serial No. 517,486. (No model.)

spring E is placed within the pulley secured at one end to the shaft 0 which is fixed at the other to the pin E, which rotates with the pulley. The pulley is preferably closed at one side by a plate and at the other by a crossbar F, which is let into the edge of the pulley, asindicated in Fig. 1, the pin E being screwthreaded and screwed into the pulley so as to hold the end of the cross-piece F in position.

G is an aperture in the plate 0, through which the pulley slightly projects and through which the ribbon runs.

The use and operation of our invention are as follows: A pulley should be associated with each sash, and there may be two with each sash, one on each side. These pulleys are preferably located, for example, near the top of such sash when it is at its lowest position. The recess or slot in the side of the sash is preferably placed at the lower end of the sash, or in order that an opening may be made on the outer edge or face of such sash so as not to be visible within the room, but to be covered and concealed, when the sash is in position, by the strip on the side of the window case or frame. The pulley and case aresituated in a suitable recess in the side of the window case or frame. When the sash is placed in position, the block at the end of the ribbon is placed in the recess in the sash. The sash may then be moved to any desired position, and the relation between the strength of the ribbon, the strength of the spring, the weight of the sash, and the friction of the parts is such that the sash will stay in any desired position. If the Window is pressed downwardly, for example, the tendency is to draw the ribbon out and this coils the spiral spring, and when, the parts being in such position, one desires to raise the sash the spring, tending to recoil when the load is partly lifted, will assist in restoring the parts to their normal condition.

We claim 1. The combination of a window sash having a recess in one side opening at the outer surface of the sash, a block adapted to fitinto the recess in the sash, a metallic ribbon having one end attached to said block the other end passing through an aperture in a plate attached to the window frame and being fastened to a pulley placed in a recess in said frame, said plate projecting outwardly above said aperture so as to form a stop for said block, and a spiral spring coiled within said pulley, one end of said spring being fastened to the case of the pulley so as to revolve with it, the other end being fastened to a fixed central pivot, substantially as described.

2. The combination of a Window sash having a recess in one side opening at the outer surface of the sash, a block adapted to fit into the recess in the sash, a metallic ribbon havin g one end attached to said block, the other end passing through an aperture in a plate attached to the window frame and being fastened to a pulley placed in a recess in said frame, said pulley projecting slightly through said aperture, a spiral spring coiled within vthe pulley one end of said spring being fas- .tened to a threaded pin or screw rotating FRANCOIS XAVIER PAYMENT. J OIIN G. HARTIG.

Witnesses:

DONALD M. CARTER, J 0s. SCHNEIDER. 

